java.lang.NoClassDefFoundError: org/eclipse/rap/rwt/service/ServiceHandler
at org.eclipse.rap.rwt.supplemental.fileupload.FileUploadHandler.<init>(FileUploadHandler.java:42)
at com.yidatec.eoffice.common.dialog.ImportDialog.startUploadReceiver(ImportDialog.java:86)
at com.yidatec.eoffice.common.dialog.ImportDialog.createDialogArea(ImportDialog.java:62)
at org.eclipse.jface.dialogs.TitleAreaDialog.createContents(TitleAreaDialog.java:152)
at org.eclipse.jface.window.Window.create(Window.java:444)
at org.eclipse.jface.dialogs.Dialog.create(Dialog.java:1071)
at org.eclipse.jface.window.Window.open(Window.java:806)
at com.yidatec.eoffice.om.project.form.actions.OP003ChangeAction.run(OP003ChangeAction.java:36)
at org.eclipse.jface.action.Action.runWithEvent(Action.java:493)
at org.eclipse.jface.action.ActionContributionItem.handleWidgetSelection(ActionContributionItem.java:575)
at org.eclipse.jface.action.ActionContributionItem.access$2(ActionContributionItem.java:492)
at org.eclipse.jface.action.ActionContributionItem$6.handleEvent(ActionContributionItem.java:443)
at org.eclipse.swt.internal.widgets.UntypedEventAdapter.dispatchEvent(UntypedEventAdapter.java:671)
at org.eclipse.swt.internal.widgets.UntypedEventAdapter.widgetSelected(UntypedEventAdapter.java:91)
at org.eclipse.swt.events.SelectionEvent.dispatchToObserver(SelectionEvent.java:192)
at org.eclipse.rap.rwt.internal.events.Event.processEvent(Event.java:46)
at org.eclipse.swt.events.TypedEvent.processEvent(TypedEvent.java:186)
at org.eclipse.swt.events.TypedEvent.executeNext(TypedEvent.java:208)
at org.eclipse.swt.widgets.Display.runPendingMessages(Display.java:1145)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:1135)
at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2733)
at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2694)
at org.eclipse.ui.internal.Workbench.access$5(Workbench.java:2530)
at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:702)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:685)
at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:157)
at com.yidatec.eoffice.startup.Application.start(Application.java:48)
at org.eclipse.rap.ui.internal.application.EntryPointApplicationWrapper.createUI(EntryPointApplicationWrapper.java:38)
at org.eclipse.rap.rwt.internal.lifecycle.RWTLifeCycle.createUI(RWTLifeCycle.java:177)
at org.eclipse.rap.rwt.internal.lifecycle.RWTLifeCycle$UIThreadController.run(RWTLifeCycle.java:289)
at java.lang.Thread.run(Thread.java:619)
at org.eclipse.rap.rwt.internal.lifecycle.UIThread.run(UIThread.java:102)
Caused by: java.lang.ClassNotFoundException: org.eclipse.rap.rwt.service.ServiceHandler
at org.eclipse.osgi.internal.loader.BundleLoader.findClassInternal(BundleLoader.java:501)
at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:421)
at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:412)
at org.eclipse.osgi.internal.baseadaptor.DefaultClassLoader.loadClass(DefaultClassLoader.java:107)
at java.lang.ClassLoader.loadClass(ClassLoader.java:248)